feat(lint): enforce definePage layout meta on pages-v2

Adds a custom ESLint rule (local-rules/require-v2-layout-meta) that
fails any src/pages-v2/**.vue page missing
definePage({ meta: { layout: 'OrganizerLayoutV2' } }) (or PortalLayoutV2
under pages-v2/portal), preventing a silent wrong-shell fallback to the
default layout (RFC-WS-GUI-REDESIGN AD-G2). Wires eslint-plugin-local-rules
+ a pages-v2 override. The RuleTester spec is called at top level (ESLint
RuleTester self-manages describe/it under Vitest) and vitest.config.ts
gains the eslint-rules test glob so the spec is discovered.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

apps/app/.eslintrc.cjs

@@ -33,6 +33,7 @@ module.exports = {
     'regex',
     'regexp',
     'boundaries',
+    'local-rules',
   ],
   ignorePatterns: [
     'src/plugins/iconify/*.js',
@@ -328,6 +329,12 @@ module.exports = {
     'boundaries/include': ['src/**/*.{ts,vue,tsx}'],
   },
   overrides: [
+    {
+      files: ['src/pages-v2/**/*.vue'],
+      rules: {
+        'local-rules/require-v2-layout-meta': 'error',
+      },
+    },
     // Vue SFCs: the base lines-around-comment rule conflicts with
     // vue/block-tag-newline at the <script setup>/comment boundary
     // (the <script> tag isn't a JS block-start so allowBlockStart